differentiate between physical change and chemical change . Also give one example of each answer class 7
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Explanation:
Physical changes only change the appearance of a substance, not its chemical composition.
Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
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Answered by
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Answer:
hey mate!
Here is your answer...
Physical change
(a) This change is temporary and reversible.
(b) There is no formation of new products.
(c) There is no energy change in these changes.
Example - Melting of ice
Chemical change
(a) These changes are permanent and irreversible.
(b) There is formation of new products
(c) Energy is either absorbed or evolved in these changes
Example - Change of milk into curd.
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